Find out what fills a room, but takes up no space, with this riddle and math combo worksheet. Use subtraction skills to solve the riddle on this math worksheet.

What do camels wear to hide from predators? And what do you call a math worksheet that includes a game? FUN!

What do you call it when one lemon helps out another? Find the answer in this subtraction riddle worksheet.

Children practice solving mutlidigit subtraction problems for speed and accuracy in this math worksheet.